What is the partial Gibbs free enthalpy of a component in a system?
the chemical potential µ
What is the partial molare Volume?
=
= the volume change for changing amount of k at T,P and non k amounts constant
How is the change in volume derived from the changes in partial Volume?
How can partial properties be determined from mixed properties? (exemplary for the Volume)
What is the relative partial molar volume?
How can the chemical potential of a concentration be determined from an enthalpie curve?
The intersection between the tangent on the curve and the enthalphy axis at full concentration gives the chemical potential.
What is a relative partial molar quantity?
The change between the partial molar quantity in pure state and when it enters a solution.
Give the 4 versions of the Gibbs-Duhem relation.
What are the consequences of the Gibbs Duhem relation?
if one component behaves ideally in a solution the other one does too
the chemical potential of componenst in a system is related
What does gamma mean in a thermodynamic/chemical context?
Gamma stands for the thermodynamic activity coeficient. It describes the deviation from an ideal substance. For ideal substances gamma is 1
What is the mixing enthalpy of an ideal solution?
What is the mixing entropy of an ideal solution?
How do you calculate the entropy statistically?
What is the mixing enthalpy for an ideal solution?
0
What is the mixing volume of an ideal solution?
Give the gibbs enthalpy, the entropy, the enthalpy and the volume of mixing for an ideal solution.
How is the partial Volume calculated in a non ideal solution?
How does the mixing Enthalpy behave over the composition change in for a endo- and exothermic mixing?
How does a partial and total immiscibility look on a Gibbs free enthalpy diagram?
How does a line have to be drawn in a free enthalpy diagram for determening the phase at a concentration?
Tangent on both curves. The tangent point is the beginning of a new phase.
How does the mixing Enthalpy differ from an ideal solution to a regular solution?
In a regular solution the enthalpy can assume values that are not 0:
This can be expressed with a parameter:
How does the Enthalpy change in a regular binary system.
How does the activity coefficient change over the concentration in a regualr binary system?
What is the physical interpretation of Omega?
Z=coordination number
exx=bond energy xx
NT=Number Moles total
roughly = the difference in energy in misture vs not
How is the activity expressed in a non ideal continous solution?
What is the speciality of mixing of three phases?
This phenomenom is very rare and can only occur at one point in the system.
How is activity measured in polymer systems?
It is measured in volume fractions onstead of mole fractions.
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